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<h2><span class="refentrytitle"><a name="gio-GActionGroup.top_of_page"></a>GActionGroup</span></h2>
<p>GActionGroup — A group of actions</p>
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<td valign="top" align="right"></td>
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<div class="refsynopsisdiv">
<a name="gio-GActionGroup.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">                    <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup">GActionGroup</a>;

<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="gio-GActionGroup.html#g-action-group-has-action" title="g_action_group_has_action ()">g_action_group_has_action</a>           (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);
<a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> **                 <a class="link" href="gio-GActionGroup.html#g-action-group-list-actions" title="g_action_group_list_actions ()">g_action_group_list_actions</a>    (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>);

<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="gio-GActionGroup.html#g-action-group-get-action-enabled" title="g_action_group_get_action_enabled ()">g_action_group_get_action_enabled</a>   (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);
const <a href="../glib/glib-GVariantType.html#GVariantType"><span class="returnvalue">GVariantType</span></a> *     <a class="link" href="gio-GActionGroup.html#g-action-group-get-action-parameter-type" title="g_action_group_get_action_parameter_type ()">g_action_group_get_action_parameter_type</a>
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);
const <a href="../glib/glib-GVariantType.html#GVariantType"><span class="returnvalue">GVariantType</span></a> *     <a class="link" href="gio-GActionGroup.html#g-action-group-get-action-state-type" title="g_action_group_get_action_state_type ()">g_action_group_get_action_state_type</a>
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);
<a href="../glib/glib-GVariant.html#GVariant"><span class="returnvalue">GVariant</span></a> *               <a class="link" href="gio-GActionGroup.html#g-action-group-get-action-state-hint" title="g_action_group_get_action_state_hint ()">g_action_group_get_action_state_hint</a>
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);

<a href="../glib/glib-GVariant.html#GVariant"><span class="returnvalue">GVariant</span></a> *               <a class="link" href="gio-GActionGroup.html#g-action-group-get-action-state" title="g_action_group_get_action_state ()">g_action_group_get_action_state</a>
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="gio-GActionGroup.html#g-action-group-change-action-state" title="g_action_group_change_action_state ()">g_action_group_change_action_state</a>  (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>,
                                                         <em class="parameter"><code><a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *value</code></em>);

<span class="returnvalue">void</span>                <a class="link" href="gio-GActionGroup.html#g-action-group-activate-action" title="g_action_group_activate_action ()">g_action_group_activate_action</a>      (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>,
                                                         <em class="parameter"><code><a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *parameter</code></em>);

<span class="returnvalue">void</span>                <a class="link" href="gio-GActionGroup.html#g-action-group-action-added" title="g_action_group_action_added ()">g_action_group_action_added</a>         (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="gio-GActionGroup.html#g-action-group-action-removed" title="g_action_group_action_removed ()">g_action_group_action_removed</a>       (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="gio-GActionGroup.html#g-action-group-action-enabled-changed" title="g_action_group_action_enabled_changed ()">g_action_group_action_enabled_changed</a>
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>,
                                                         <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> enabled</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="gio-GActionGroup.html#g-action-group-action-state-changed" title="g_action_group_action_state_changed ()">g_action_group_action_state_changed</a> (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>,
                                                         <em class="parameter"><code><a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *state</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="gio-GActionGroup.description"></a><h2>Description</h2>
<p>
<a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> represents a group of actions.
</p>
<p>
Each action in the group has a unique name (which is a string).  All
method calls, except <a class="link" href="gio-GActionGroup.html#g-action-group-list-actions" title="g_action_group_list_actions ()"><code class="function">g_action_group_list_actions()</code></a> take the name of
an action as an argument.
</p>
<p>
The <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> API is meant to be the 'public' API to the action
group.  The calls here are exactly the interaction that 'external
forces' (eg: UI, incoming D-Bus messages, etc.) are supposed to have
with actions.  'Internal' APIs (ie: ones meant only to be accessed by
the action group implementation) are found on subclasses.  This is
why you will find -- for example -- <code class="function">g_action_group_get_enabled()</code> but
not an equivalent <code class="function"><code class="function">set()</code></code> call.
</p>
<p>
Signals are emitted on the action group in response to state changes
on individual actions.
</p>
</div>
<div class="refsect1">
<a name="gio-GActionGroup.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GActionGroup"></a><h3>GActionGroup</h3>
<pre class="programlisting">typedef struct _GActionGroup GActionGroup;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-has-action"></a><h3>g_action_group_has_action ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            g_action_group_has_action           (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);</pre>
<p>
Checks if the named action exists within <em class="parameter"><code>action_group</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of the action to check for</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>whether the named action exists</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-list-actions"></a><h3>g_action_group_list_actions ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> **                 g_action_group_list_actions    (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>);</pre>
<p>
Lists the actions contained within <em class="parameter"><code>action_group</code></em>.
</p>
<p>
The caller is responsible for freeing the list with <a href="../glib/glib-String-Utility-Functions.html#g-strfreev"><code class="function">g_strfreev()</code></a> when
it is no longer required.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>-terminated array of the names of the
actions in the groupb. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-get-action-enabled"></a><h3>g_action_group_get_action_enabled ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            g_action_group_get_action_enabled   (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);</pre>
<p>
Checks if the named action within <em class="parameter"><code>action_group</code></em> is currently enabled.
</p>
<p>
An action must be enabled in order to be activated or in order to
have its state changed from outside callers.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of the action to query</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>whether or not the action is currently enabled</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-get-action-parameter-type"></a><h3>g_action_group_get_action_parameter_type ()</h3>
<pre class="programlisting">const <a href="../glib/glib-GVariantType.html#GVariantType"><span class="returnvalue">GVariantType</span></a> *     g_action_group_get_action_parameter_type
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);</pre>
<p>
Queries the type of the parameter that must be given when activating
the named action within <em class="parameter"><code>action_group</code></em>.
</p>
<p>
When activating the action using <code class="function">g_action_group_activate()</code>, the
<a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> given to that function must be of the type returned by this
function.
</p>
<p>
In the case that this function returns <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, you must not give any
<a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a>, but <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> instead.
</p>
<p>
The parameter type of a particular action will never change but it is
possible for an action to be removed and for a new action to be added
with the same name but a different parameter type.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of the action to query</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the parameter type</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-get-action-state-type"></a><h3>g_action_group_get_action_state_type ()</h3>
<pre class="programlisting">const <a href="../glib/glib-GVariantType.html#GVariantType"><span class="returnvalue">GVariantType</span></a> *     g_action_group_get_action_state_type
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);</pre>
<p>
Queries the type of the state of the named action within
<em class="parameter"><code>action_group</code></em>.
</p>
<p>
If the action is stateful then this function returns the
<a href="../glib/glib-GVariantType.html#GVariantType"><span class="type">GVariantType</span></a> of the state.  All calls to <code class="function">g_action_group_set_state()</code>
must give a <a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> of this type and <code class="function">g_action_group_get_state()</code>
will return a <a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> of the same type.
</p>
<p>
If the action is not stateful then this function will return <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.
In that case, <code class="function">g_action_group_get_state()</code> will return <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> and you
must not call <code class="function">g_action_group_set_state()</code>.
</p>
<p>
The state type of a particular action will never change but it is
possible for an action to be removed and for a new action to be added
with the same name but a different state type.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of the action to query</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the state type, if the action is stateful. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-get-action-state-hint"></a><h3>g_action_group_get_action_state_hint ()</h3>
<pre class="programlisting"><a href="../glib/glib-GVariant.html#GVariant"><span class="returnvalue">GVariant</span></a> *               g_action_group_get_action_state_hint
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);</pre>
<p>
Requests a hint about the valid range of values for the state of the
named action within <em class="parameter"><code>action_group</code></em>.
</p>
<p>
If <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is returned it either means that the action is not stateful
or that there is no hint about the valid range of values for the
state of the action.
</p>
<p>
If a <a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> array is returned then each item in the array is a
possible value for the state.  If a <a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> pair (ie: two-tuple) is
returned then the tuple specifies the inclusive lower and upper bound
of valid values for the state.
</p>
<p>
In any case, the information is merely a hint.  It may be possible to
have a state value outside of the hinted range and setting a value
within the range may fail.
</p>
<p>
The return value (if non-<a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>) should be freed with
<a href="../glib/glib-GVariant.html#g-variant-unref"><code class="function">g_variant_unref()</code></a> when it is no longer required.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of the action to query</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the state range hint. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-get-action-state"></a><h3>g_action_group_get_action_state ()</h3>
<pre class="programlisting"><a href="../glib/glib-GVariant.html#GVariant"><span class="returnvalue">GVariant</span></a> *               g_action_group_get_action_state
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);</pre>
<p>
Queries the current state of the named action within <em class="parameter"><code>action_group</code></em>.
</p>
<p>
If the action is not stateful then <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> will be returned.  If the
action is stateful then the type of the return value is the type
given by <code class="function">g_action_group_get_state_type()</code>.
</p>
<p>
The return value (if non-<a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>) should be freed with
<a href="../glib/glib-GVariant.html#g-variant-unref"><code class="function">g_variant_unref()</code></a> when it is no longer required.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of the action to query</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the current state of the action. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-change-action-state"></a><h3>g_action_group_change_action_state ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                g_action_group_change_action_state  (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>,
                                                         <em class="parameter"><code><a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *value</code></em>);</pre>
<p>
Request for the state of the named action within <em class="parameter"><code>action_group</code></em> to be
changed to <em class="parameter"><code>value</code></em>.
</p>
<p>
The action must be stateful and <em class="parameter"><code>value</code></em> must be of the correct type.
See <code class="function">g_action_group_get_state_type()</code>.
</p>
<p>
This call merely requests a change.  The action may refuse to change
its state or may change its state to something other than <em class="parameter"><code>value</code></em>.
See <code class="function">g_action_group_get_state_hint()</code>.
</p>
<p>
If the <em class="parameter"><code>value</code></em> GVariant is floating, it is consumed.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of the action to request the change on</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>the new state</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-activate-action"></a><h3>g_action_group_activate_action ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                g_action_group_activate_action      (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>,
                                                         <em class="parameter"><code><a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *parameter</code></em>);</pre>
<p>
Activate the named action within <em class="parameter"><code>action_group</code></em>.
</p>
<p>
If the action is expecting a parameter, then the correct type of
parameter must be given as <em class="parameter"><code>parameter</code></em>.  If the action is expecting no
parameters then <em class="parameter"><code>parameter</code></em> must be <a href="../glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.  See
<code class="function">g_action_group_get_parameter_type()</code>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of the action to activate</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>parameter</code></em> :</span></p></td>
<td>parameters to the activation. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-action-added"></a><h3>g_action_group_action_added ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                g_action_group_action_added         (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);</pre>
<p>
Emits the <span class="type">"action-added"</span> signal on <em class="parameter"><code>action_group</code></em>.
</p>
<p>
This function should only be called by <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> implementations.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of an action in the group</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-action-removed"></a><h3>g_action_group_action_removed ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                g_action_group_action_removed       (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>);</pre>
<p>
Emits the <span class="type">"action-removed"</span> signal on <em class="parameter"><code>action_group</code></em>.
</p>
<p>
This function should only be called by <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> implementations.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of an action in the group</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-action-enabled-changed"></a><h3>g_action_group_action_enabled_changed ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                g_action_group_action_enabled_changed
                                                        (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>,
                                                         <em class="parameter"><code><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> enabled</code></em>);</pre>
<p>
Emits the <span class="type">"action-enabled-changed"</span> signal on <em class="parameter"><code>action_group</code></em>.
</p>
<p>
This function should only be called by <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> implementations.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of an action in the group</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>enabled</code></em> :</span></p></td>
<td>whether or not the action is now enabled</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
<hr>
<div class="refsect2">
<a name="g-action-group-action-state-changed"></a><h3>g_action_group_action_state_changed ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                g_action_group_action_state_changed (<em class="parameter"><code><a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> *action_group</code></em>,
                                                         <em class="parameter"><code>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *action_name</code></em>,
                                                         <em class="parameter"><code><a href="../glib/glib-GVariant.html#GVariant"><span class="type">GVariant</span></a> *state</code></em>);</pre>
<p>
Emits the <span class="type">"action-state-changed"</span> signal on <em class="parameter"><code>action_group</code></em>.
</p>
<p>
This function should only be called by <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a> implementations.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_group</code></em> :</span></p></td>
<td>a <a class="link" href="gio-GActionGroup.html#GActionGroup" title="GActionGroup"><span class="type">GActionGroup</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>action_name</code></em> :</span></p></td>
<td>the name of an action in the group</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>state</code></em> :</span></p></td>
<td>the new state of the named action</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.28</p>
</div>
</div>
</div>
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